Refer to the exhibit. A network engineer started to configure port security on a new switch. These requirements must be met: - MAC addresses must be learned dynamically - Log messages must be generate

The `switchport port-security mac-address sticky` command enables sticky learning, which dynamically learns MAC addresses and stores them in the running configuration, meeting the requirement for dynamic learning.

The `switchport port-security violation restrict` command sets the violation mode to restrict, which drops violating frames, increments a security violation counter, and generates an SNMP trap and a syslog message, satisfying the requirement to generate log messages without disabling the interface.

`switchport port-security mac-address 0010.7B84.45E6` statically configures a MAC address, which contradicts the requirement for dynamically learned MAC addresses.

`switchport port-security maximum 2` limits the number of learned MAC addresses but doesn't fulfill the requirements for dynamic learning or the specific violation action.

`switchport port-security violation shutdown` causes the interface to shut down when a security violation occurs, which goes against the requirement to NOT disable the interface.